Child safety seat



FIG. 1 is a perspective view of a child safety seat showing my new design;

FIG. 2 is a right side elevational view thereof, with the left side being substantially a mirror image;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a rear elevational view thereof.

The bottom of the child safety seat is unornamented. 

The ornamental design for a child safety seat, as shown and described. 